(2R,3S)-7-bromo-6-(4-fluorophenyl)-2,3-dimethyl-2,3-dihydropyrazolo[5,1-b]oxazole CAS 1429893-31-1
| CAS No. | 1429893-31-1 |
| Molecular Formula | C13H12BrFN2O |
| Molecular Weight | 311.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies (2R,3S)-7-bromo-6-(4-fluorophenyl)-2,3-dimethyl-2,3-dihydropyrazolo[5,1-b]oxazole (CAS 1429893-31-1), a certified reference material (molecular formula C13H12BrFN2O, MW 311.15 g/mol) for analytical method development and quality control.
Based on its molecular formula C13H12BrFN2O, (2R,3S)-7-bromo-6-(4-fluorophenyl)-2,3-dimethyl-2,3-dihydropyrazolo[5,1-b]oxazole contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 311.15 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), (2R,3S)-7-bromo-6-(4-fluorophenyl)-2,3-dimethyl-2,3-dihydropyrazolo[5,1-b]oxazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C13H12BrFN2O |
| Molecular Weight | 311.15 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- 3-Bromo-2-(4-fluorophenyl)-7-methyl-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine (CAS 1429893-29-7)
- (2R,3R)-7-bromo-6-(4-fluorophenyl)-2,3-dimethyl-2,3-dihydropyrazolo[5,1-b]oxazole (CAS 1429893-64-0)
- (3-Bromophenyl)(3-fluoro-4-methoxyphenyl)methanol (CAS 1285349-75-8)
- Methyl 4-bromo-3-hydroxy-5-(2-methoxyethoxy)thiophene-2-carboxylate (CAS 1707581-67-6)
- Ethyl 5-(isoxazol-3-yl)-1,2,4-oxadiazole-3-carboxylate (CAS 1343187-68-7)
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